'use strict';

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: Dashboard
 * (C) Copyright IBM Corp. 2019, 2020
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */
define(['underscore', '../../dataSources/nls/StringResources', '../../lib/@waca/core-client/js/core-client/i18n/Formatter'], function (_, StringResources, Formatter) {

	/*
  * Resolve data item references in the forecast statistical details
  */
	var refResolver = function refResolver(reference, options) {
		var queryResult = options.queryResult;


		if (reference.category) {
			return reference.category;
		}

		var dataItem = queryResult.getDefaultQueryResult().getFacetData().getDataItem(reference.field);
		return dataItem.getTupleHeader()[0].d;
	};

	var bold = { border: 'none', fontWeight: '700', padding: '8px' };

	// regex to match numbers in scientific notation. e.g. "1.123e+32"
	var exponentialRegex = new RegExp('[-+]?[0-9]*.?[0-9]+([eE][-+]?[0-9]+)', 'g');

	/**
  * Item:
  * {
  *  	path - Array of strings indicating path to the value of a column
  *  	resolver - Function to resolve references in stat details payload
  *  	style - Object describing style to be applied on the column
  * 			header - header style
  * 			members - member style
  *  	value - Value to display display in cell
  *  	format - Format to be applied to value
  * }
  * */
	var HEADER_0 = [{ style: { header: { left: '0px' } }, value: StringResources.get('forecastDetailsForecastLabel') }, {}, { style: { header: { left: '400px', width: '200px' } }, value: StringResources.get('forecastDetailsModelLabel') }, {}, {}, {}, {}, {}, { style: { header: { left: '1250px', width: '220px' } }, value: StringResources.get('forecastDetailsQualityMetricLabel') }, {}, {}, {}, {}, {}, {}, { style: { header: { left: '2365px', width: '200px' } }, value: StringResources.get('forecastDetailsSmoothingCoefLabel') }, {}, {}, {}, {}, {}, {}, { style: { header: { left: '3550px', width: '200px' } }, value: StringResources.get('forecastDetailsDiagnostics') }, {}, {}];

	var HEADER_1 = [{ path: ['status'], value: StringResources.get('forecastDetailsStatusLabel') }, {}, { path: ['model', 'trend', 'type'], value: StringResources.get('forecastDetailsTrendLabel') }, { path: ['model', 'season', 'type'], value: StringResources.get('forecastDetailsSeasonLabel') }, {}, { path: ['accuracy', 'accuracy'], value: StringResources.get('forecastDetailsAccuracyPercentLabel'), format: { type: 'percent', minimumFractionDigits: 1 }, style: { members: bold } }, { path: ['accuracy', 'MASE'], value: 'MASE', format: { type: 'number', minimumFractionDigits: 3 }, style: { members: bold } }, { path: ['accuracy', 'MAE'], value: 'MAE', format: { type: 'number', minimumFractionDigits: 3 } }, { path: ['accuracy', 'RMSE'], value: 'RMSE', format: { type: 'number', minimumFractionDigits: 3 } }, { path: ['accuracy', 'MAPE'], value: 'MAPE', format: { type: 'percent', minimumFractionDigits: 1 } }, { path: ['accuracy', 'AIC'], value: 'AIC', format: { type: 'number', minimumFractionDigits: 3 } }, {}, { path: ['model', 'season', 'period'], value: StringResources.get('forecastDetailsSeasonalPeriodLabel') }, { path: ['model', 'parameters', 'alpha'], value: StringResources.get('forecastDetailsAlphaLabel'), format: { type: 'number', minimumFractionDigits: 3 } }, { path: ['model', 'parameters', 'beta'], value: StringResources.get('forecastDetailsBetaLabel'), format: { type: 'number', minimumFractionDigits: 3 } }, { path: ['model', 'parameters', 'gamma'], value: StringResources.get('forecastDetailsGammaLabel'), format: { type: 'number', minimumFractionDigits: 3 } }, { path: ['model', 'parameters', 'phi'], value: StringResources.get('forecastDetailsPhiLabel'), format: { type: 'number', minimumFractionDigits: 3 } }, {}, { path: ['data', 'missingCount'], value: StringResources.get('forecastDetailsMissingCount') }, { path: ['data', 'seriesLength'], value: StringResources.get('forecastDetailsSeriesLengthLabel') }, { path: ['model', 'ignoredPeriods'], value: StringResources.get('forecastDetailsIgnoredPeriods') }, { path: ['model', 'trend', 'strength'], value: StringResources.get('forecastDetailsTrendStrength'), format: { type: 'percent', minimumFractionDigits: 1 } }, { path: ['model', 'season', 'strength'], value: StringResources.get('forecastDetailsSeasonalityStrength'), format: { type: 'percent', minimumFractionDigits: 1 } }, { path: ['data', 'timeDeltaUnit'], value: StringResources.get('forecastDetailsTimeDeltaUnit') }, { path: ['notes'], value: StringResources.get('forecastDetailsNotes') }];
	var HEADER = [HEADER_0, HEADER_1];
	var FIXED_COLUMN_STYLE = {
		members: {
			display: 'flex',
			alignItems: 'center'
		}
	};
	var FIXED_COLUMN = [{ path: ['reference'], resolver: refResolver, style: FIXED_COLUMN_STYLE }];

	var Result = function () {
		function Result(queryResult) {
			_classCallCheck(this, Result);

			this.queryResult = queryResult;
			this.statisticalDetails = queryResult.getStatisticalDetails();
			this.formatter = Formatter;
		}

		Result.prototype.getNumFixedColumns = function getNumFixedColumns() {
			return FIXED_COLUMN.length;
		};

		Result.prototype.getNumColumns = function getNumColumns() {
			return HEADER_1.length;
		};

		Result.prototype.getNumRows = function getNumRows() {
			return this.statisticalDetails.length;
		};

		Result.prototype.getHeader = function getHeader(rowIndex, colIndex) {
			var headerInfo = HEADER[rowIndex][colIndex];
			var header = {
				style: {},
				value: headerInfo.value
			};

			if (_.isEmpty(headerInfo)) {
				return {
					value: '',
					style: { gridCell: { display: 'none' }, cellValue: {} }
				};
			}

			header.style.gridCell = headerInfo.style && headerInfo.style.header || {};
			_.extend(header.style.gridCell, bold);
			header.style.cellValue = { alignment: 'center' };

			if (rowIndex === 1) {
				delete header.style.gridCell.border;
				header.style.gridCell.borderRight = 'none';
			}

			return header;
		};

		Result.prototype.getNumHeaderRows = function getNumHeaderRows() {
			return HEADER.length;
		};

		Result.prototype.getFixedColumn = function getFixedColumn(rowIndex, colIndex) {
			return this._getCell(rowIndex, colIndex, FIXED_COLUMN[colIndex]);
		};

		Result.prototype._getCell = function _getCell(rowIndex, colIndex, info) {
			var headerInfo = info;
			if (_.isUndefined(headerInfo.path)) {
				return {
					style: { gridCell: { display: 'none' }, cellValue: { alignment: 'center' } }
				};
			}

			var data = this.statisticalDetails[rowIndex];
			_.each(headerInfo.path, function (p) {
				return data = data[p];
			});

			if (headerInfo.resolver) {
				var option = {
					queryResult: this.queryResult,
					statisticalDetails: this.statisticalDetails
				};
				data = headerInfo.resolver(data, option);
			}

			var shouldFormat = true;
			if (_.isNull(data) || _.isEmpty(data) && !_.isNumber(data)) {
				data = StringResources.get('nullValueText');
				shouldFormat = false;
			}

			if (data.toString().match(exponentialRegex)) {
				shouldFormat = false;
			}

			var gridStyle = headerInfo.style && headerInfo.style.members || {};

			return {
				value: shouldFormat ? this.formatter.format(data, headerInfo.format) : data,
				style: { gridCell: _.extend({ border: 'none' }, gridStyle), cellValue: { alignment: 'center' } }
			};
		};

		Result.prototype.getCell = function getCell(rowIndex, colIndex) {
			return this._getCell(rowIndex, colIndex, HEADER[1][colIndex]);
		};

		return Result;
	}();

	return Result;
});
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